1 /*=============================================================================
2 *
3 * A PCMCIA client driver for the Raylink wireless LAN card.
4 * The starting point for this module was the skeleton.c in the
5 * PCMCIA 2.9.12 package written by David Hinds, dahinds@users.sourceforge.net
6 *
7 *
8 * Copyright (c) 1998 Corey Thomas (corey@world.std.com)
9 *
10 * This driver is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 only of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * It is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
22 *
23 * Changes:
24 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
25 * - reorganize kmallocs in ray_attach, checking all for failure
26 * and releasing the previous allocations if one fails
27 *
28 * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003
29 * - Audit copy_to_user in ioctl(SIOCGIWESSID)
30 *
31 =============================================================================*/
32
33 #include <linux/module.h>
34 #include <linux/kernel.h>
35 #include <linux/proc_fs.h>
36 #include <linux/ptrace.h>
37 #include <linux/seq_file.h>
38 #include <linux/string.h>
39 #include <linux/timer.h>
40 #include <linux/init.h>
41 #include <linux/netdevice.h>
42 #include <linux/etherdevice.h>
43 #include <linux/if_arp.h>
44 #include <linux/ioport.h>
45 #include <linux/skbuff.h>
46 #include <linux/ieee80211.h>
47
48 #include <pcmcia/cistpl.h>
49 #include <pcmcia/cisreg.h>
50 #include <pcmcia/ds.h>
51
52 #include <linux/wireless.h>
53 #include <net/iw_handler.h>
54
55 #include <asm/io.h>
56 #include <asm/system.h>
57 #include <asm/byteorder.h>
58 #include <asm/uaccess.h>
59
60 /* Warning : these stuff will slow down the driver... */
61 #define WIRELESS_SPY /* Enable spying addresses */
62 /* Definitions we need for spy */
63 typedef struct iw_statistics iw_stats;
64 typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */
65
66 #include "rayctl.h"
67 #include "ray_cs.h"
68
69
70 /** Prototypes based on PCMCIA skeleton driver *******************************/
71 static int ray_config(struct pcmcia_device *link);
72 static void ray_release(struct pcmcia_device *link);
73 static void ray_detach(struct pcmcia_device *p_dev);
74
75 /***** Prototypes indicated by device structure ******************************/
76 static int ray_dev_close(struct net_device *dev);
77 static int ray_dev_config(struct net_device *dev, struct ifmap *map);
78 static struct net_device_stats *ray_get_stats(struct net_device *dev);
79 static int ray_dev_init(struct net_device *dev);
80
81 static int ray_open(struct net_device *dev);
82 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
83 struct net_device *dev);
84 static void set_multicast_list(struct net_device *dev);
85 static void ray_update_multi_list(struct net_device *dev, int all);
86 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
87 unsigned char *data, int len);
88 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
89 UCHAR msg_type, unsigned char *data);
90 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
91 static iw_stats *ray_get_wireless_stats(struct net_device *dev);
92 static const struct iw_handler_def ray_handler_def;
93
94 /***** Prototypes for raylink functions **************************************/
95 static void authenticate(ray_dev_t *local);
96 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
97 static void authenticate_timeout(u_long);
98 static int get_free_ccs(ray_dev_t *local);
99 static int get_free_tx_ccs(ray_dev_t *local);
100 static void init_startup_params(ray_dev_t *local);
101 static int parse_addr(char *in_str, UCHAR *out);
102 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type);
103 static int ray_init(struct net_device *dev);
104 static int interrupt_ecf(ray_dev_t *local, int ccs);
105 static void ray_reset(struct net_device *dev);
106 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
107 static void verify_dl_startup(u_long);
108
109 /* Prototypes for interrpt time functions **********************************/
110 static irqreturn_t ray_interrupt(int reg, void *dev_id);
111 static void clear_interrupt(ray_dev_t *local);
112 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
113 unsigned int pkt_addr, int rx_len);
114 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
115 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs);
116 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
117 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
118 unsigned int pkt_addr, int rx_len);
119 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
120 unsigned int pkt_addr, int rx_len);
121 static void associate(ray_dev_t *local);
122
123 /* Card command functions */
124 static int dl_startup_params(struct net_device *dev);
125 static void join_net(u_long local);
126 static void start_net(u_long local);
127 /* void start_net(ray_dev_t *local); */
128
129 /*===========================================================================*/
130 /* Parameters that can be set with 'insmod' */
131
132 /* ADHOC=0, Infrastructure=1 */
133 static int net_type = ADHOC;
134
135 /* Hop dwell time in Kus (1024 us units defined by 802.11) */
136 static int hop_dwell = 128;
137
138 /* Beacon period in Kus */
139 static int beacon_period = 256;
140
141 /* power save mode (0 = off, 1 = save power) */
142 static int psm;
143
144 /* String for network's Extended Service Set ID. 32 Characters max */
145 static char *essid;
146
147 /* Default to encapsulation unless translation requested */
148 static int translate = 1;
149
150 static int country = USA;
151
152 static int sniffer;
153
154 static int bc;
155
156 /* 48 bit physical card address if overriding card's real physical
157 * address is required. Since IEEE 802.11 addresses are 48 bits
158 * like ethernet, an int can't be used, so a string is used. To
159 * allow use of addresses starting with a decimal digit, the first
160 * character must be a letter and will be ignored. This letter is
161 * followed by up to 12 hex digits which are the address. If less
162 * than 12 digits are used, the address will be left filled with 0's.
163 * Note that bit 0 of the first byte is the broadcast bit, and evil
164 * things will happen if it is not 0 in a card address.
165 */
166 static char *phy_addr = NULL;
167
168 static unsigned int ray_mem_speed = 500;
169
170 /* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
171 static struct pcmcia_device *this_device = NULL;
172
173 MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
174 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
175 MODULE_LICENSE("GPL");
176
177 module_param(net_type, int, 0);
178 module_param(hop_dwell, int, 0);
179 module_param(beacon_period, int, 0);
180 module_param(psm, int, 0);
181 module_param(essid, charp, 0);
182 module_param(translate, int, 0);
183 module_param(country, int, 0);
184 module_param(sniffer, int, 0);
185 module_param(bc, int, 0);
186 module_param(phy_addr, charp, 0);
187 module_param(ray_mem_speed, int, 0);
188
189 static const UCHAR b5_default_startup_parms[] = {
190 0, 0, /* Adhoc station */
191 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
192 0, 0, 0, 0, 0, 0, 0, 0,
193 0, 0, 0, 0, 0, 0, 0, 0,
194 0, 0, 0, 0, 0, 0, 0, 0,
195 1, 0, /* Active scan, CA Mode */
196 0, 0, 0, 0, 0, 0, /* No default MAC addr */
197 0x7f, 0xff, /* Frag threshold */
198 0x00, 0x80, /* Hop time 128 Kus */
199 0x01, 0x00, /* Beacon period 256 Kus */
200 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
201 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */
202 0x7f, 0xff, /* RTS threshold */
203 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
204 0x05, /* assoc resp timeout thresh */
205 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max */
206 0, /* Promiscuous mode */
207 0x0c, 0x0bd, /* Unique word */
208 0x32, /* Slot time */
209 0xff, 0xff, /* roam-low snr, low snr count */
210 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
211 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */
212 /* b4 - b5 differences start here */
213 0x00, 0x3f, /* CW max */
214 0x00, 0x0f, /* CW min */
215 0x04, 0x08, /* Noise gain, limit offset */
216 0x28, 0x28, /* det rssi, med busy offsets */
217 7, /* det sync thresh */
218 0, 2, 2, /* test mode, min, max */
219 0, /* allow broadcast SSID probe resp */
220 0, 0, /* privacy must start, can join */
221 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */
222 };
223
224 static const UCHAR b4_default_startup_parms[] = {
225 0, 0, /* Adhoc station */
226 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
227 0, 0, 0, 0, 0, 0, 0, 0,
228 0, 0, 0, 0, 0, 0, 0, 0,
229 0, 0, 0, 0, 0, 0, 0, 0,
230 1, 0, /* Active scan, CA Mode */
231 0, 0, 0, 0, 0, 0, /* No default MAC addr */
232 0x7f, 0xff, /* Frag threshold */
233 0x02, 0x00, /* Hop time */
234 0x00, 0x01, /* Beacon period */
235 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
236 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */
237 0x7f, 0xff, /* RTS threshold */
238 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
239 0x05, /* assoc resp timeout thresh */
240 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max */
241 0, /* Promiscuous mode */
242 0x0c, 0x0bd, /* Unique word */
243 0x4e, /* Slot time (TBD seems wrong) */
244 0xff, 0xff, /* roam-low snr, low snr count */
245 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
246 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */
247 /* b4 - b5 differences start here */
248 0x3f, 0x0f, /* CW max, min */
249 0x04, 0x08, /* Noise gain, limit offset */
250 0x28, 0x28, /* det rssi, med busy offsets */
251 7, /* det sync thresh */
252 0, 2, 2 /* test mode, min, max */
253 };
254
255 /*===========================================================================*/
256 static const u8 eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 };
257
258 static const char hop_pattern_length[] = { 1,
259 USA_HOP_MOD, EUROPE_HOP_MOD,
260 JAPAN_HOP_MOD, KOREA_HOP_MOD,
261 SPAIN_HOP_MOD, FRANCE_HOP_MOD,
262 ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
263 JAPAN_TEST_HOP_MOD
264 };
265
266 static const char rcsid[] =
267 "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>";
268
269 static const struct net_device_ops ray_netdev_ops = {
270 .ndo_init = ray_dev_init,
271 .ndo_open = ray_open,
272 .ndo_stop = ray_dev_close,
273 .ndo_start_xmit = ray_dev_start_xmit,
274 .ndo_set_config = ray_dev_config,
275 .ndo_get_stats = ray_get_stats,
276 .ndo_set_rx_mode = set_multicast_list,
277 .ndo_change_mtu = eth_change_mtu,
278 .ndo_set_mac_address = eth_mac_addr,
279 .ndo_validate_addr = eth_validate_addr,
280 };
281
ray_probe(struct pcmcia_device * p_dev)282 static int ray_probe(struct pcmcia_device *p_dev)
283 {
284 ray_dev_t *local;
285 struct net_device *dev;
286
287 dev_dbg(&p_dev->dev, "ray_attach()\n");
288
289 /* Allocate space for private device-specific data */
290 dev = alloc_etherdev(sizeof(ray_dev_t));
291 if (!dev)
292 goto fail_alloc_dev;
293
294 local = netdev_priv(dev);
295 local->finder = p_dev;
296
297 /* The io structure describes IO port mapping. None used here */
298 p_dev->resource[0]->end = 0;
299 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
300
301 /* General socket configuration */
302 p_dev->config_flags |= CONF_ENABLE_IRQ;
303 p_dev->config_index = 1;
304
305 p_dev->priv = dev;
306
307 local->finder = p_dev;
308 local->card_status = CARD_INSERTED;
309 local->authentication_state = UNAUTHENTICATED;
310 local->num_multi = 0;
311 dev_dbg(&p_dev->dev, "ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n",
312 p_dev, dev, local, &ray_interrupt);
313
314 /* Raylink entries in the device structure */
315 dev->netdev_ops = &ray_netdev_ops;
316 dev->wireless_handlers = &ray_handler_def;
317 #ifdef WIRELESS_SPY
318 local->wireless_data.spy_data = &local->spy_data;
319 dev->wireless_data = &local->wireless_data;
320 #endif /* WIRELESS_SPY */
321
322
323 dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n");
324 netif_stop_queue(dev);
325
326 init_timer(&local->timer);
327
328 this_device = p_dev;
329 return ray_config(p_dev);
330
331 fail_alloc_dev:
332 return -ENOMEM;
333 } /* ray_attach */
334
ray_detach(struct pcmcia_device * link)335 static void ray_detach(struct pcmcia_device *link)
336 {
337 struct net_device *dev;
338 ray_dev_t *local;
339
340 dev_dbg(&link->dev, "ray_detach\n");
341
342 this_device = NULL;
343 dev = link->priv;
344
345 ray_release(link);
346
347 local = netdev_priv(dev);
348 del_timer(&local->timer);
349
350 if (link->priv) {
351 unregister_netdev(dev);
352 free_netdev(dev);
353 }
354 dev_dbg(&link->dev, "ray_cs ray_detach ending\n");
355 } /* ray_detach */
356
357 #define MAX_TUPLE_SIZE 128
ray_config(struct pcmcia_device * link)358 static int ray_config(struct pcmcia_device *link)
359 {
360 int ret = 0;
361 int i;
362 struct net_device *dev = (struct net_device *)link->priv;
363 ray_dev_t *local = netdev_priv(dev);
364
365 dev_dbg(&link->dev, "ray_config\n");
366
367 /* Determine card type and firmware version */
368 printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n",
369 link->prod_id[0] ? link->prod_id[0] : " ",
370 link->prod_id[1] ? link->prod_id[1] : " ",
371 link->prod_id[2] ? link->prod_id[2] : " ",
372 link->prod_id[3] ? link->prod_id[3] : " ");
373
374 /* Now allocate an interrupt line. Note that this does not
375 actually assign a handler to the interrupt.
376 */
377 ret = pcmcia_request_irq(link, ray_interrupt);
378 if (ret)
379 goto failed;
380 dev->irq = link->irq;
381
382 ret = pcmcia_enable_device(link);
383 if (ret)
384 goto failed;
385
386 /*** Set up 32k window for shared memory (transmit and control) ************/
387 link->resource[2]->flags |= WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
388 link->resource[2]->start = 0;
389 link->resource[2]->end = 0x8000;
390 ret = pcmcia_request_window(link, link->resource[2], ray_mem_speed);
391 if (ret)
392 goto failed;
393 ret = pcmcia_map_mem_page(link, link->resource[2], 0);
394 if (ret)
395 goto failed;
396 local->sram = ioremap(link->resource[2]->start,
397 resource_size(link->resource[2]));
398
399 /*** Set up 16k window for shared memory (receive buffer) ***************/
400 link->resource[3]->flags |=
401 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
402 link->resource[3]->start = 0;
403 link->resource[3]->end = 0x4000;
404 ret = pcmcia_request_window(link, link->resource[3], ray_mem_speed);
405 if (ret)
406 goto failed;
407 ret = pcmcia_map_mem_page(link, link->resource[3], 0x8000);
408 if (ret)
409 goto failed;
410 local->rmem = ioremap(link->resource[3]->start,
411 resource_size(link->resource[3]));
412
413 /*** Set up window for attribute memory ***********************************/
414 link->resource[4]->flags |=
415 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT;
416 link->resource[4]->start = 0;
417 link->resource[4]->end = 0x1000;
418 ret = pcmcia_request_window(link, link->resource[4], ray_mem_speed);
419 if (ret)
420 goto failed;
421 ret = pcmcia_map_mem_page(link, link->resource[4], 0);
422 if (ret)
423 goto failed;
424 local->amem = ioremap(link->resource[4]->start,
425 resource_size(link->resource[4]));
426
427 dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram);
428 dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem);
429 dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem);
430 if (ray_init(dev) < 0) {
431 ray_release(link);
432 return -ENODEV;
433 }
434
435 SET_NETDEV_DEV(dev, &link->dev);
436 i = register_netdev(dev);
437 if (i != 0) {
438 printk("ray_config register_netdev() failed\n");
439 ray_release(link);
440 return i;
441 }
442
443 printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n",
444 dev->name, dev->irq, dev->dev_addr);
445
446 return 0;
447
448 failed:
449 ray_release(link);
450 return -ENODEV;
451 } /* ray_config */
452
ccs_base(ray_dev_t * dev)453 static inline struct ccs __iomem *ccs_base(ray_dev_t *dev)
454 {
455 return dev->sram + CCS_BASE;
456 }
457
rcs_base(ray_dev_t * dev)458 static inline struct rcs __iomem *rcs_base(ray_dev_t *dev)
459 {
460 /*
461 * This looks nonsensical, since there is a separate
462 * RCS_BASE. But the difference between a "struct rcs"
463 * and a "struct ccs" ends up being in the _index_ off
464 * the base, so the base pointer is the same for both
465 * ccs/rcs.
466 */
467 return dev->sram + CCS_BASE;
468 }
469
470 /*===========================================================================*/
ray_init(struct net_device * dev)471 static int ray_init(struct net_device *dev)
472 {
473 int i;
474 UCHAR *p;
475 struct ccs __iomem *pccs;
476 ray_dev_t *local = netdev_priv(dev);
477 struct pcmcia_device *link = local->finder;
478 dev_dbg(&link->dev, "ray_init(0x%p)\n", dev);
479 if (!(pcmcia_dev_present(link))) {
480 dev_dbg(&link->dev, "ray_init - device not present\n");
481 return -1;
482 }
483
484 local->net_type = net_type;
485 local->sta_type = TYPE_STA;
486
487 /* Copy the startup results to local memory */
488 memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE,
489 sizeof(struct startup_res_6));
490
491 /* Check Power up test status and get mac address from card */
492 if (local->startup_res.startup_word != 0x80) {
493 printk(KERN_INFO "ray_init ERROR card status = %2x\n",
494 local->startup_res.startup_word);
495 local->card_status = CARD_INIT_ERROR;
496 return -1;
497 }
498
499 local->fw_ver = local->startup_res.firmware_version[0];
500 local->fw_bld = local->startup_res.firmware_version[1];
501 local->fw_var = local->startup_res.firmware_version[2];
502 dev_dbg(&link->dev, "ray_init firmware version %d.%d\n", local->fw_ver,
503 local->fw_bld);
504
505 local->tib_length = 0x20;
506 if ((local->fw_ver == 5) && (local->fw_bld >= 30))
507 local->tib_length = local->startup_res.tib_length;
508 dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length);
509 /* Initialize CCS's to buffer free state */
510 pccs = ccs_base(local);
511 for (i = 0; i < NUMBER_OF_CCS; i++) {
512 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
513 }
514 init_startup_params(local);
515
516 /* copy mac address to startup parameters */
517 if (parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) {
518 p = local->sparm.b4.a_mac_addr;
519 } else {
520 memcpy(&local->sparm.b4.a_mac_addr,
521 &local->startup_res.station_addr, ADDRLEN);
522 p = local->sparm.b4.a_mac_addr;
523 }
524
525 clear_interrupt(local); /* Clear any interrupt from the card */
526 local->card_status = CARD_AWAITING_PARAM;
527 dev_dbg(&link->dev, "ray_init ending\n");
528 return 0;
529 } /* ray_init */
530
531 /*===========================================================================*/
532 /* Download startup parameters to the card and command it to read them */
dl_startup_params(struct net_device * dev)533 static int dl_startup_params(struct net_device *dev)
534 {
535 int ccsindex;
536 ray_dev_t *local = netdev_priv(dev);
537 struct ccs __iomem *pccs;
538 struct pcmcia_device *link = local->finder;
539
540 dev_dbg(&link->dev, "dl_startup_params entered\n");
541 if (!(pcmcia_dev_present(link))) {
542 dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n");
543 return -1;
544 }
545
546 /* Copy parameters to host to ECF area */
547 if (local->fw_ver == 0x55)
548 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4,
549 sizeof(struct b4_startup_params));
550 else
551 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5,
552 sizeof(struct b5_startup_params));
553
554 /* Fill in the CCS fields for the ECF */
555 if ((ccsindex = get_free_ccs(local)) < 0)
556 return -1;
557 local->dl_param_ccs = ccsindex;
558 pccs = ccs_base(local) + ccsindex;
559 writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
560 dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n",
561 local->dl_param_ccs);
562 /* Interrupt the firmware to process the command */
563 if (interrupt_ecf(local, ccsindex)) {
564 printk(KERN_INFO "ray dl_startup_params failed - "
565 "ECF not ready for intr\n");
566 local->card_status = CARD_DL_PARAM_ERROR;
567 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
568 return -2;
569 }
570 local->card_status = CARD_DL_PARAM;
571 /* Start kernel timer to wait for dl startup to complete. */
572 local->timer.expires = jiffies + HZ / 2;
573 local->timer.data = (long)local;
574 local->timer.function = verify_dl_startup;
575 add_timer(&local->timer);
576 dev_dbg(&link->dev,
577 "ray_cs dl_startup_params started timer for verify_dl_startup\n");
578 return 0;
579 } /* dl_startup_params */
580
581 /*===========================================================================*/
init_startup_params(ray_dev_t * local)582 static void init_startup_params(ray_dev_t *local)
583 {
584 int i;
585
586 if (country > JAPAN_TEST)
587 country = USA;
588 else if (country < USA)
589 country = USA;
590 /* structure for hop time and beacon period is defined here using
591 * New 802.11D6.1 format. Card firmware is still using old format
592 * until version 6.
593 * Before After
594 * a_hop_time ms byte a_hop_time ms byte
595 * a_hop_time 2s byte a_hop_time ls byte
596 * a_hop_time ls byte a_beacon_period ms byte
597 * a_beacon_period a_beacon_period ls byte
598 *
599 * a_hop_time = uS a_hop_time = KuS
600 * a_beacon_period = hops a_beacon_period = KuS
601 *//* 64ms = 010000 */
602 if (local->fw_ver == 0x55) {
603 memcpy((UCHAR *) &local->sparm.b4, b4_default_startup_parms,
604 sizeof(struct b4_startup_params));
605 /* Translate sane kus input values to old build 4/5 format */
606 /* i = hop time in uS truncated to 3 bytes */
607 i = (hop_dwell * 1024) & 0xffffff;
608 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
609 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
610 local->sparm.b4.a_beacon_period[0] = 0;
611 local->sparm.b4.a_beacon_period[1] =
612 ((beacon_period / hop_dwell) - 1) & 0xff;
613 local->sparm.b4.a_curr_country_code = country;
614 local->sparm.b4.a_hop_pattern_length =
615 hop_pattern_length[(int)country] - 1;
616 if (bc) {
617 local->sparm.b4.a_ack_timeout = 0x50;
618 local->sparm.b4.a_sifs = 0x3f;
619 }
620 } else { /* Version 5 uses real kus values */
621 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms,
622 sizeof(struct b5_startup_params));
623
624 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
625 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
626 local->sparm.b5.a_beacon_period[0] =
627 (beacon_period >> 8) & 0xff;
628 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
629 if (psm)
630 local->sparm.b5.a_power_mgt_state = 1;
631 local->sparm.b5.a_curr_country_code = country;
632 local->sparm.b5.a_hop_pattern_length =
633 hop_pattern_length[(int)country];
634 }
635
636 local->sparm.b4.a_network_type = net_type & 0x01;
637 local->sparm.b4.a_acting_as_ap_status = TYPE_STA;
638
639 if (essid != NULL)
640 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
641 } /* init_startup_params */
642
643 /*===========================================================================*/
verify_dl_startup(u_long data)644 static void verify_dl_startup(u_long data)
645 {
646 ray_dev_t *local = (ray_dev_t *) data;
647 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs;
648 UCHAR status;
649 struct pcmcia_device *link = local->finder;
650
651 if (!(pcmcia_dev_present(link))) {
652 dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n");
653 return;
654 }
655 #if 0
656 {
657 int i;
658 printk(KERN_DEBUG
659 "verify_dl_startup parameters sent via ccs %d:\n",
660 local->dl_param_ccs);
661 for (i = 0; i < sizeof(struct b5_startup_params); i++) {
662 printk(" %2x",
663 (unsigned int)readb(local->sram +
664 HOST_TO_ECF_BASE + i));
665 }
666 printk("\n");
667 }
668 #endif
669
670 status = readb(&pccs->buffer_status);
671 if (status != CCS_BUFFER_FREE) {
672 printk(KERN_INFO
673 "Download startup params failed. Status = %d\n",
674 status);
675 local->card_status = CARD_DL_PARAM_ERROR;
676 return;
677 }
678 if (local->sparm.b4.a_network_type == ADHOC)
679 start_net((u_long) local);
680 else
681 join_net((u_long) local);
682 } /* end verify_dl_startup */
683
684 /*===========================================================================*/
685 /* Command card to start a network */
start_net(u_long data)686 static void start_net(u_long data)
687 {
688 ray_dev_t *local = (ray_dev_t *) data;
689 struct ccs __iomem *pccs;
690 int ccsindex;
691 struct pcmcia_device *link = local->finder;
692 if (!(pcmcia_dev_present(link))) {
693 dev_dbg(&link->dev, "ray_cs start_net - device not present\n");
694 return;
695 }
696 /* Fill in the CCS fields for the ECF */
697 if ((ccsindex = get_free_ccs(local)) < 0)
698 return;
699 pccs = ccs_base(local) + ccsindex;
700 writeb(CCS_START_NETWORK, &pccs->cmd);
701 writeb(0, &pccs->var.start_network.update_param);
702 /* Interrupt the firmware to process the command */
703 if (interrupt_ecf(local, ccsindex)) {
704 dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n");
705 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
706 return;
707 }
708 local->card_status = CARD_DOING_ACQ;
709 } /* end start_net */
710
711 /*===========================================================================*/
712 /* Command card to join a network */
join_net(u_long data)713 static void join_net(u_long data)
714 {
715 ray_dev_t *local = (ray_dev_t *) data;
716
717 struct ccs __iomem *pccs;
718 int ccsindex;
719 struct pcmcia_device *link = local->finder;
720
721 if (!(pcmcia_dev_present(link))) {
722 dev_dbg(&link->dev, "ray_cs join_net - device not present\n");
723 return;
724 }
725 /* Fill in the CCS fields for the ECF */
726 if ((ccsindex = get_free_ccs(local)) < 0)
727 return;
728 pccs = ccs_base(local) + ccsindex;
729 writeb(CCS_JOIN_NETWORK, &pccs->cmd);
730 writeb(0, &pccs->var.join_network.update_param);
731 writeb(0, &pccs->var.join_network.net_initiated);
732 /* Interrupt the firmware to process the command */
733 if (interrupt_ecf(local, ccsindex)) {
734 dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n");
735 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
736 return;
737 }
738 local->card_status = CARD_DOING_ACQ;
739 }
740
741
ray_release(struct pcmcia_device * link)742 static void ray_release(struct pcmcia_device *link)
743 {
744 struct net_device *dev = link->priv;
745 ray_dev_t *local = netdev_priv(dev);
746
747 dev_dbg(&link->dev, "ray_release\n");
748
749 del_timer(&local->timer);
750
751 iounmap(local->sram);
752 iounmap(local->rmem);
753 iounmap(local->amem);
754 pcmcia_disable_device(link);
755
756 dev_dbg(&link->dev, "ray_release ending\n");
757 }
758
ray_suspend(struct pcmcia_device * link)759 static int ray_suspend(struct pcmcia_device *link)
760 {
761 struct net_device *dev = link->priv;
762
763 if (link->open)
764 netif_device_detach(dev);
765
766 return 0;
767 }
768
ray_resume(struct pcmcia_device * link)769 static int ray_resume(struct pcmcia_device *link)
770 {
771 struct net_device *dev = link->priv;
772
773 if (link->open) {
774 ray_reset(dev);
775 netif_device_attach(dev);
776 }
777
778 return 0;
779 }
780
781 /*===========================================================================*/
ray_dev_init(struct net_device * dev)782 static int ray_dev_init(struct net_device *dev)
783 {
784 #ifdef RAY_IMMEDIATE_INIT
785 int i;
786 #endif /* RAY_IMMEDIATE_INIT */
787 ray_dev_t *local = netdev_priv(dev);
788 struct pcmcia_device *link = local->finder;
789
790 dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev);
791 if (!(pcmcia_dev_present(link))) {
792 dev_dbg(&link->dev, "ray_dev_init - device not present\n");
793 return -1;
794 }
795 #ifdef RAY_IMMEDIATE_INIT
796 /* Download startup parameters */
797 if ((i = dl_startup_params(dev)) < 0) {
798 printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
799 "returns 0x%x\n", i);
800 return -1;
801 }
802 #else /* RAY_IMMEDIATE_INIT */
803 /* Postpone the card init so that we can still configure the card,
804 * for example using the Wireless Extensions. The init will happen
805 * in ray_open() - Jean II */
806 dev_dbg(&link->dev,
807 "ray_dev_init: postponing card init to ray_open() ; Status = %d\n",
808 local->card_status);
809 #endif /* RAY_IMMEDIATE_INIT */
810
811 /* copy mac and broadcast addresses to linux device */
812 memcpy(dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN);
813 memset(dev->broadcast, 0xff, ETH_ALEN);
814
815 dev_dbg(&link->dev, "ray_dev_init ending\n");
816 return 0;
817 }
818
819 /*===========================================================================*/
ray_dev_config(struct net_device * dev,struct ifmap * map)820 static int ray_dev_config(struct net_device *dev, struct ifmap *map)
821 {
822 ray_dev_t *local = netdev_priv(dev);
823 struct pcmcia_device *link = local->finder;
824 /* Dummy routine to satisfy device structure */
825 dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map);
826 if (!(pcmcia_dev_present(link))) {
827 dev_dbg(&link->dev, "ray_dev_config - device not present\n");
828 return -1;
829 }
830
831 return 0;
832 }
833
834 /*===========================================================================*/
ray_dev_start_xmit(struct sk_buff * skb,struct net_device * dev)835 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
836 struct net_device *dev)
837 {
838 ray_dev_t *local = netdev_priv(dev);
839 struct pcmcia_device *link = local->finder;
840 short length = skb->len;
841
842 if (!pcmcia_dev_present(link)) {
843 dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n");
844 dev_kfree_skb(skb);
845 return NETDEV_TX_OK;
846 }
847
848 dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev);
849 if (local->authentication_state == NEED_TO_AUTH) {
850 dev_dbg(&link->dev, "ray_cs Sending authentication request.\n");
851 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) {
852 local->authentication_state = AUTHENTICATED;
853 netif_stop_queue(dev);
854 return NETDEV_TX_BUSY;
855 }
856 }
857
858 if (length < ETH_ZLEN) {
859 if (skb_padto(skb, ETH_ZLEN))
860 return NETDEV_TX_OK;
861 length = ETH_ZLEN;
862 }
863 switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) {
864 case XMIT_NO_CCS:
865 case XMIT_NEED_AUTH:
866 netif_stop_queue(dev);
867 return NETDEV_TX_BUSY;
868 case XMIT_NO_INTR:
869 case XMIT_MSG_BAD:
870 case XMIT_OK:
871 default:
872 dev_kfree_skb(skb);
873 }
874
875 return NETDEV_TX_OK;
876 } /* ray_dev_start_xmit */
877
878 /*===========================================================================*/
ray_hw_xmit(unsigned char * data,int len,struct net_device * dev,UCHAR msg_type)879 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev,
880 UCHAR msg_type)
881 {
882 ray_dev_t *local = netdev_priv(dev);
883 struct ccs __iomem *pccs;
884 int ccsindex;
885 int offset;
886 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */
887 short int addr; /* Address of xmit buffer in card space */
888
889 pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev);
890 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) {
891 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n",
892 len);
893 return XMIT_MSG_BAD;
894 }
895 switch (ccsindex = get_free_tx_ccs(local)) {
896 case ECCSBUSY:
897 pr_debug("ray_hw_xmit tx_ccs table busy\n");
898 case ECCSFULL:
899 pr_debug("ray_hw_xmit No free tx ccs\n");
900 case ECARDGONE:
901 netif_stop_queue(dev);
902 return XMIT_NO_CCS;
903 default:
904 break;
905 }
906 addr = TX_BUF_BASE + (ccsindex << 11);
907
908 if (msg_type == DATA_TYPE) {
909 local->stats.tx_bytes += len;
910 local->stats.tx_packets++;
911 }
912
913 ptx = local->sram + addr;
914
915 ray_build_header(local, ptx, msg_type, data);
916 if (translate) {
917 offset = translate_frame(local, ptx, data, len);
918 } else { /* Encapsulate frame */
919 /* TBD TIB length will move address of ptx->var */
920 memcpy_toio(&ptx->var, data, len);
921 offset = 0;
922 }
923
924 /* fill in the CCS */
925 pccs = ccs_base(local) + ccsindex;
926 len += TX_HEADER_LENGTH + offset;
927 writeb(CCS_TX_REQUEST, &pccs->cmd);
928 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
929 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
930 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
931 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
932 /* TBD still need psm_cam? */
933 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
934 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
935 writeb(0, &pccs->var.tx_request.antenna);
936 pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n",
937 local->net_default_tx_rate);
938
939 /* Interrupt the firmware to process the command */
940 if (interrupt_ecf(local, ccsindex)) {
941 pr_debug("ray_hw_xmit failed - ECF not ready for intr\n");
942 /* TBD very inefficient to copy packet to buffer, and then not
943 send it, but the alternative is to queue the messages and that
944 won't be done for a while. Maybe set tbusy until a CCS is free?
945 */
946 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
947 return XMIT_NO_INTR;
948 }
949 return XMIT_OK;
950 } /* end ray_hw_xmit */
951
952 /*===========================================================================*/
translate_frame(ray_dev_t * local,struct tx_msg __iomem * ptx,unsigned char * data,int len)953 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
954 unsigned char *data, int len)
955 {
956 __be16 proto = ((struct ethhdr *)data)->h_proto;
957 if (ntohs(proto) >= 1536) { /* DIX II ethernet frame */
958 pr_debug("ray_cs translate_frame DIX II\n");
959 /* Copy LLC header to card buffer */
960 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
961 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc),
962 (UCHAR *) &proto, 2);
963 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) {
964 /* This is the selective translation table, only 2 entries */
965 writeb(0xf8,
966 &((struct snaphdr_t __iomem *)ptx->var)->org[3]);
967 }
968 /* Copy body of ethernet packet without ethernet header */
969 memcpy_toio((void __iomem *)&ptx->var +
970 sizeof(struct snaphdr_t), data + ETH_HLEN,
971 len - ETH_HLEN);
972 return (int)sizeof(struct snaphdr_t) - ETH_HLEN;
973 } else { /* already 802 type, and proto is length */
974 pr_debug("ray_cs translate_frame 802\n");
975 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */
976 pr_debug("ray_cs translate_frame evil IPX\n");
977 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
978 return 0 - ETH_HLEN;
979 }
980 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
981 return 0 - ETH_HLEN;
982 }
983 /* TBD do other frame types */
984 } /* end translate_frame */
985
986 /*===========================================================================*/
ray_build_header(ray_dev_t * local,struct tx_msg __iomem * ptx,UCHAR msg_type,unsigned char * data)987 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
988 UCHAR msg_type, unsigned char *data)
989 {
990 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
991 /*** IEEE 802.11 Address field assignments *************
992 TODS FROMDS addr_1 addr_2 addr_3 addr_4
993 Adhoc 0 0 dest src (terminal) BSSID N/A
994 AP to Terminal 0 1 dest AP(BSSID) source N/A
995 Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A
996 AP to AP 1 1 dest AP src AP dest source
997 *******************************************************/
998 if (local->net_type == ADHOC) {
999 writeb(0, &ptx->mac.frame_ctl_2);
1000 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest,
1001 2 * ADDRLEN);
1002 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
1003 } else { /* infrastructure */
1004
1005 if (local->sparm.b4.a_acting_as_ap_status) {
1006 writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
1007 memcpy_toio(ptx->mac.addr_1,
1008 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1009 memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
1010 memcpy_toio(ptx->mac.addr_3,
1011 ((struct ethhdr *)data)->h_source, ADDRLEN);
1012 } else { /* Terminal */
1013
1014 writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
1015 memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
1016 memcpy_toio(ptx->mac.addr_2,
1017 ((struct ethhdr *)data)->h_source, ADDRLEN);
1018 memcpy_toio(ptx->mac.addr_3,
1019 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1020 }
1021 }
1022 } /* end encapsulate_frame */
1023
1024 /*====================================================================*/
1025
1026 /*------------------------------------------------------------------*/
1027 /*
1028 * Wireless Handler : get protocol name
1029 */
ray_get_name(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1030 static int ray_get_name(struct net_device *dev, struct iw_request_info *info,
1031 union iwreq_data *wrqu, char *extra)
1032 {
1033 strcpy(wrqu->name, "IEEE 802.11-FH");
1034 return 0;
1035 }
1036
1037 /*------------------------------------------------------------------*/
1038 /*
1039 * Wireless Handler : set frequency
1040 */
ray_set_freq(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1041 static int ray_set_freq(struct net_device *dev, struct iw_request_info *info,
1042 union iwreq_data *wrqu, char *extra)
1043 {
1044 ray_dev_t *local = netdev_priv(dev);
1045 int err = -EINPROGRESS; /* Call commit handler */
1046
1047 /* Reject if card is already initialised */
1048 if (local->card_status != CARD_AWAITING_PARAM)
1049 return -EBUSY;
1050
1051 /* Setting by channel number */
1052 if ((wrqu->freq.m > USA_HOP_MOD) || (wrqu->freq.e > 0))
1053 err = -EOPNOTSUPP;
1054 else
1055 local->sparm.b5.a_hop_pattern = wrqu->freq.m;
1056
1057 return err;
1058 }
1059
1060 /*------------------------------------------------------------------*/
1061 /*
1062 * Wireless Handler : get frequency
1063 */
ray_get_freq(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1064 static int ray_get_freq(struct net_device *dev, struct iw_request_info *info,
1065 union iwreq_data *wrqu, char *extra)
1066 {
1067 ray_dev_t *local = netdev_priv(dev);
1068
1069 wrqu->freq.m = local->sparm.b5.a_hop_pattern;
1070 wrqu->freq.e = 0;
1071 return 0;
1072 }
1073
1074 /*------------------------------------------------------------------*/
1075 /*
1076 * Wireless Handler : set ESSID
1077 */
ray_set_essid(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1078 static int ray_set_essid(struct net_device *dev, struct iw_request_info *info,
1079 union iwreq_data *wrqu, char *extra)
1080 {
1081 ray_dev_t *local = netdev_priv(dev);
1082
1083 /* Reject if card is already initialised */
1084 if (local->card_status != CARD_AWAITING_PARAM)
1085 return -EBUSY;
1086
1087 /* Check if we asked for `any' */
1088 if (wrqu->essid.flags == 0)
1089 /* Corey : can you do that ? */
1090 return -EOPNOTSUPP;
1091
1092 /* Check the size of the string */
1093 if (wrqu->essid.length > IW_ESSID_MAX_SIZE)
1094 return -E2BIG;
1095
1096 /* Set the ESSID in the card */
1097 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
1098 memcpy(local->sparm.b5.a_current_ess_id, extra, wrqu->essid.length);
1099
1100 return -EINPROGRESS; /* Call commit handler */
1101 }
1102
1103 /*------------------------------------------------------------------*/
1104 /*
1105 * Wireless Handler : get ESSID
1106 */
ray_get_essid(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1107 static int ray_get_essid(struct net_device *dev, struct iw_request_info *info,
1108 union iwreq_data *wrqu, char *extra)
1109 {
1110 ray_dev_t *local = netdev_priv(dev);
1111
1112 /* Get the essid that was set */
1113 memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1114
1115 /* Push it out ! */
1116 wrqu->essid.length = strlen(extra);
1117 wrqu->essid.flags = 1; /* active */
1118
1119 return 0;
1120 }
1121
1122 /*------------------------------------------------------------------*/
1123 /*
1124 * Wireless Handler : get AP address
1125 */
ray_get_wap(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1126 static int ray_get_wap(struct net_device *dev, struct iw_request_info *info,
1127 union iwreq_data *wrqu, char *extra)
1128 {
1129 ray_dev_t *local = netdev_priv(dev);
1130
1131 memcpy(wrqu->ap_addr.sa_data, local->bss_id, ETH_ALEN);
1132 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1133
1134 return 0;
1135 }
1136
1137 /*------------------------------------------------------------------*/
1138 /*
1139 * Wireless Handler : set Bit-Rate
1140 */
ray_set_rate(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1141 static int ray_set_rate(struct net_device *dev, struct iw_request_info *info,
1142 union iwreq_data *wrqu, char *extra)
1143 {
1144 ray_dev_t *local = netdev_priv(dev);
1145
1146 /* Reject if card is already initialised */
1147 if (local->card_status != CARD_AWAITING_PARAM)
1148 return -EBUSY;
1149
1150 /* Check if rate is in range */
1151 if ((wrqu->bitrate.value != 1000000) && (wrqu->bitrate.value != 2000000))
1152 return -EINVAL;
1153
1154 /* Hack for 1.5 Mb/s instead of 2 Mb/s */
1155 if ((local->fw_ver == 0x55) && /* Please check */
1156 (wrqu->bitrate.value == 2000000))
1157 local->net_default_tx_rate = 3;
1158 else
1159 local->net_default_tx_rate = wrqu->bitrate.value / 500000;
1160
1161 return 0;
1162 }
1163
1164 /*------------------------------------------------------------------*/
1165 /*
1166 * Wireless Handler : get Bit-Rate
1167 */
ray_get_rate(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1168 static int ray_get_rate(struct net_device *dev, struct iw_request_info *info,
1169 union iwreq_data *wrqu, char *extra)
1170 {
1171 ray_dev_t *local = netdev_priv(dev);
1172
1173 if (local->net_default_tx_rate == 3)
1174 wrqu->bitrate.value = 2000000; /* Hum... */
1175 else
1176 wrqu->bitrate.value = local->net_default_tx_rate * 500000;
1177 wrqu->bitrate.fixed = 0; /* We are in auto mode */
1178
1179 return 0;
1180 }
1181
1182 /*------------------------------------------------------------------*/
1183 /*
1184 * Wireless Handler : set RTS threshold
1185 */
ray_set_rts(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1186 static int ray_set_rts(struct net_device *dev, struct iw_request_info *info,
1187 union iwreq_data *wrqu, char *extra)
1188 {
1189 ray_dev_t *local = netdev_priv(dev);
1190 int rthr = wrqu->rts.value;
1191
1192 /* Reject if card is already initialised */
1193 if (local->card_status != CARD_AWAITING_PARAM)
1194 return -EBUSY;
1195
1196 /* if(wrq->u.rts.fixed == 0) we should complain */
1197 if (wrqu->rts.disabled)
1198 rthr = 32767;
1199 else {
1200 if ((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */
1201 return -EINVAL;
1202 }
1203 local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
1204 local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;
1205
1206 return -EINPROGRESS; /* Call commit handler */
1207 }
1208
1209 /*------------------------------------------------------------------*/
1210 /*
1211 * Wireless Handler : get RTS threshold
1212 */
ray_get_rts(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1213 static int ray_get_rts(struct net_device *dev, struct iw_request_info *info,
1214 union iwreq_data *wrqu, char *extra)
1215 {
1216 ray_dev_t *local = netdev_priv(dev);
1217
1218 wrqu->rts.value = (local->sparm.b5.a_rts_threshold[0] << 8)
1219 + local->sparm.b5.a_rts_threshold[1];
1220 wrqu->rts.disabled = (wrqu->rts.value == 32767);
1221 wrqu->rts.fixed = 1;
1222
1223 return 0;
1224 }
1225
1226 /*------------------------------------------------------------------*/
1227 /*
1228 * Wireless Handler : set Fragmentation threshold
1229 */
ray_set_frag(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1230 static int ray_set_frag(struct net_device *dev, struct iw_request_info *info,
1231 union iwreq_data *wrqu, char *extra)
1232 {
1233 ray_dev_t *local = netdev_priv(dev);
1234 int fthr = wrqu->frag.value;
1235
1236 /* Reject if card is already initialised */
1237 if (local->card_status != CARD_AWAITING_PARAM)
1238 return -EBUSY;
1239
1240 /* if(wrq->u.frag.fixed == 0) should complain */
1241 if (wrqu->frag.disabled)
1242 fthr = 32767;
1243 else {
1244 if ((fthr < 256) || (fthr > 2347)) /* To check out ! */
1245 return -EINVAL;
1246 }
1247 local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
1248 local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;
1249
1250 return -EINPROGRESS; /* Call commit handler */
1251 }
1252
1253 /*------------------------------------------------------------------*/
1254 /*
1255 * Wireless Handler : get Fragmentation threshold
1256 */
ray_get_frag(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1257 static int ray_get_frag(struct net_device *dev, struct iw_request_info *info,
1258 union iwreq_data *wrqu, char *extra)
1259 {
1260 ray_dev_t *local = netdev_priv(dev);
1261
1262 wrqu->frag.value = (local->sparm.b5.a_frag_threshold[0] << 8)
1263 + local->sparm.b5.a_frag_threshold[1];
1264 wrqu->frag.disabled = (wrqu->frag.value == 32767);
1265 wrqu->frag.fixed = 1;
1266
1267 return 0;
1268 }
1269
1270 /*------------------------------------------------------------------*/
1271 /*
1272 * Wireless Handler : set Mode of Operation
1273 */
ray_set_mode(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1274 static int ray_set_mode(struct net_device *dev, struct iw_request_info *info,
1275 union iwreq_data *wrqu, char *extra)
1276 {
1277 ray_dev_t *local = netdev_priv(dev);
1278 int err = -EINPROGRESS; /* Call commit handler */
1279 char card_mode = 1;
1280
1281 /* Reject if card is already initialised */
1282 if (local->card_status != CARD_AWAITING_PARAM)
1283 return -EBUSY;
1284
1285 switch (wrqu->mode) {
1286 case IW_MODE_ADHOC:
1287 card_mode = 0;
1288 /* Fall through */
1289 case IW_MODE_INFRA:
1290 local->sparm.b5.a_network_type = card_mode;
1291 break;
1292 default:
1293 err = -EINVAL;
1294 }
1295
1296 return err;
1297 }
1298
1299 /*------------------------------------------------------------------*/
1300 /*
1301 * Wireless Handler : get Mode of Operation
1302 */
ray_get_mode(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1303 static int ray_get_mode(struct net_device *dev, struct iw_request_info *info,
1304 union iwreq_data *wrqu, char *extra)
1305 {
1306 ray_dev_t *local = netdev_priv(dev);
1307
1308 if (local->sparm.b5.a_network_type)
1309 wrqu->mode = IW_MODE_INFRA;
1310 else
1311 wrqu->mode = IW_MODE_ADHOC;
1312
1313 return 0;
1314 }
1315
1316 /*------------------------------------------------------------------*/
1317 /*
1318 * Wireless Handler : get range info
1319 */
ray_get_range(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1320 static int ray_get_range(struct net_device *dev, struct iw_request_info *info,
1321 union iwreq_data *wrqu, char *extra)
1322 {
1323 struct iw_range *range = (struct iw_range *)extra;
1324
1325 memset(range, 0, sizeof(struct iw_range));
1326
1327 /* Set the length (very important for backward compatibility) */
1328 wrqu->data.length = sizeof(struct iw_range);
1329
1330 /* Set the Wireless Extension versions */
1331 range->we_version_compiled = WIRELESS_EXT;
1332 range->we_version_source = 9;
1333
1334 /* Set information in the range struct */
1335 range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */
1336 range->num_channels = hop_pattern_length[(int)country];
1337 range->num_frequency = 0;
1338 range->max_qual.qual = 0;
1339 range->max_qual.level = 255; /* What's the correct value ? */
1340 range->max_qual.noise = 255; /* Idem */
1341 range->num_bitrates = 2;
1342 range->bitrate[0] = 1000000; /* 1 Mb/s */
1343 range->bitrate[1] = 2000000; /* 2 Mb/s */
1344 return 0;
1345 }
1346
1347 /*------------------------------------------------------------------*/
1348 /*
1349 * Wireless Private Handler : set framing mode
1350 */
ray_set_framing(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1351 static int ray_set_framing(struct net_device *dev, struct iw_request_info *info,
1352 union iwreq_data *wrqu, char *extra)
1353 {
1354 translate = *(extra); /* Set framing mode */
1355
1356 return 0;
1357 }
1358
1359 /*------------------------------------------------------------------*/
1360 /*
1361 * Wireless Private Handler : get framing mode
1362 */
ray_get_framing(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1363 static int ray_get_framing(struct net_device *dev, struct iw_request_info *info,
1364 union iwreq_data *wrqu, char *extra)
1365 {
1366 *(extra) = translate;
1367
1368 return 0;
1369 }
1370
1371 /*------------------------------------------------------------------*/
1372 /*
1373 * Wireless Private Handler : get country
1374 */
ray_get_country(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1375 static int ray_get_country(struct net_device *dev, struct iw_request_info *info,
1376 union iwreq_data *wrqu, char *extra)
1377 {
1378 *(extra) = country;
1379
1380 return 0;
1381 }
1382
1383 /*------------------------------------------------------------------*/
1384 /*
1385 * Commit handler : called after a bunch of SET operations
1386 */
ray_commit(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1387 static int ray_commit(struct net_device *dev, struct iw_request_info *info,
1388 union iwreq_data *wrqu, char *extra)
1389 {
1390 return 0;
1391 }
1392
1393 /*------------------------------------------------------------------*/
1394 /*
1395 * Stats handler : return Wireless Stats
1396 */
ray_get_wireless_stats(struct net_device * dev)1397 static iw_stats *ray_get_wireless_stats(struct net_device *dev)
1398 {
1399 ray_dev_t *local = netdev_priv(dev);
1400 struct pcmcia_device *link = local->finder;
1401 struct status __iomem *p = local->sram + STATUS_BASE;
1402
1403 local->wstats.status = local->card_status;
1404 #ifdef WIRELESS_SPY
1405 if ((local->spy_data.spy_number > 0)
1406 && (local->sparm.b5.a_network_type == 0)) {
1407 /* Get it from the first node in spy list */
1408 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual;
1409 local->wstats.qual.level = local->spy_data.spy_stat[0].level;
1410 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise;
1411 local->wstats.qual.updated =
1412 local->spy_data.spy_stat[0].updated;
1413 }
1414 #endif /* WIRELESS_SPY */
1415
1416 if (pcmcia_dev_present(link)) {
1417 local->wstats.qual.noise = readb(&p->rxnoise);
1418 local->wstats.qual.updated |= 4;
1419 }
1420
1421 return &local->wstats;
1422 } /* end ray_get_wireless_stats */
1423
1424 /*------------------------------------------------------------------*/
1425 /*
1426 * Structures to export the Wireless Handlers
1427 */
1428
1429 static const iw_handler ray_handler[] = {
1430 IW_HANDLER(SIOCSIWCOMMIT, ray_commit),
1431 IW_HANDLER(SIOCGIWNAME, ray_get_name),
1432 IW_HANDLER(SIOCSIWFREQ, ray_set_freq),
1433 IW_HANDLER(SIOCGIWFREQ, ray_get_freq),
1434 IW_HANDLER(SIOCSIWMODE, ray_set_mode),
1435 IW_HANDLER(SIOCGIWMODE, ray_get_mode),
1436 IW_HANDLER(SIOCGIWRANGE, ray_get_range),
1437 #ifdef WIRELESS_SPY
1438 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1439 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1440 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1441 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1442 #endif /* WIRELESS_SPY */
1443 IW_HANDLER(SIOCGIWAP, ray_get_wap),
1444 IW_HANDLER(SIOCSIWESSID, ray_set_essid),
1445 IW_HANDLER(SIOCGIWESSID, ray_get_essid),
1446 IW_HANDLER(SIOCSIWRATE, ray_set_rate),
1447 IW_HANDLER(SIOCGIWRATE, ray_get_rate),
1448 IW_HANDLER(SIOCSIWRTS, ray_set_rts),
1449 IW_HANDLER(SIOCGIWRTS, ray_get_rts),
1450 IW_HANDLER(SIOCSIWFRAG, ray_set_frag),
1451 IW_HANDLER(SIOCGIWFRAG, ray_get_frag),
1452 };
1453
1454 #define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */
1455 #define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */
1456 #define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */
1457
1458 static const iw_handler ray_private_handler[] = {
1459 [0] = ray_set_framing,
1460 [1] = ray_get_framing,
1461 [3] = ray_get_country,
1462 };
1463
1464 static const struct iw_priv_args ray_private_args[] = {
1465 /* cmd, set_args, get_args, name */
1466 {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0,
1467 "set_framing"},
1468 {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1469 "get_framing"},
1470 {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1471 "get_country"},
1472 };
1473
1474 static const struct iw_handler_def ray_handler_def = {
1475 .num_standard = ARRAY_SIZE(ray_handler),
1476 .num_private = ARRAY_SIZE(ray_private_handler),
1477 .num_private_args = ARRAY_SIZE(ray_private_args),
1478 .standard = ray_handler,
1479 .private = ray_private_handler,
1480 .private_args = ray_private_args,
1481 .get_wireless_stats = ray_get_wireless_stats,
1482 };
1483
1484 /*===========================================================================*/
ray_open(struct net_device * dev)1485 static int ray_open(struct net_device *dev)
1486 {
1487 ray_dev_t *local = netdev_priv(dev);
1488 struct pcmcia_device *link;
1489 link = local->finder;
1490
1491 dev_dbg(&link->dev, "ray_open('%s')\n", dev->name);
1492
1493 if (link->open == 0)
1494 local->num_multi = 0;
1495 link->open++;
1496
1497 /* If the card is not started, time to start it ! - Jean II */
1498 if (local->card_status == CARD_AWAITING_PARAM) {
1499 int i;
1500
1501 dev_dbg(&link->dev, "ray_open: doing init now !\n");
1502
1503 /* Download startup parameters */
1504 if ((i = dl_startup_params(dev)) < 0) {
1505 printk(KERN_INFO
1506 "ray_dev_init dl_startup_params failed - "
1507 "returns 0x%x\n", i);
1508 return -1;
1509 }
1510 }
1511
1512 if (sniffer)
1513 netif_stop_queue(dev);
1514 else
1515 netif_start_queue(dev);
1516
1517 dev_dbg(&link->dev, "ray_open ending\n");
1518 return 0;
1519 } /* end ray_open */
1520
1521 /*===========================================================================*/
ray_dev_close(struct net_device * dev)1522 static int ray_dev_close(struct net_device *dev)
1523 {
1524 ray_dev_t *local = netdev_priv(dev);
1525 struct pcmcia_device *link;
1526 link = local->finder;
1527
1528 dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name);
1529
1530 link->open--;
1531 netif_stop_queue(dev);
1532
1533 /* In here, we should stop the hardware (stop card from beeing active)
1534 * and set local->card_status to CARD_AWAITING_PARAM, so that while the
1535 * card is closed we can chage its configuration.
1536 * Probably also need a COR reset to get sane state - Jean II */
1537
1538 return 0;
1539 } /* end ray_dev_close */
1540
1541 /*===========================================================================*/
ray_reset(struct net_device * dev)1542 static void ray_reset(struct net_device *dev)
1543 {
1544 pr_debug("ray_reset entered\n");
1545 }
1546
1547 /*===========================================================================*/
1548 /* Cause a firmware interrupt if it is ready for one */
1549 /* Return nonzero if not ready */
interrupt_ecf(ray_dev_t * local,int ccs)1550 static int interrupt_ecf(ray_dev_t *local, int ccs)
1551 {
1552 int i = 50;
1553 struct pcmcia_device *link = local->finder;
1554
1555 if (!(pcmcia_dev_present(link))) {
1556 dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n");
1557 return -1;
1558 }
1559 dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs);
1560
1561 while (i &&
1562 (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) &
1563 ECF_INTR_SET))
1564 i--;
1565 if (i == 0) {
1566 dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n");
1567 return -1;
1568 }
1569 /* Fill the mailbox, then kick the card */
1570 writeb(ccs, local->sram + SCB_BASE);
1571 writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
1572 return 0;
1573 } /* interrupt_ecf */
1574
1575 /*===========================================================================*/
1576 /* Get next free transmit CCS */
1577 /* Return - index of current tx ccs */
get_free_tx_ccs(ray_dev_t * local)1578 static int get_free_tx_ccs(ray_dev_t *local)
1579 {
1580 int i;
1581 struct ccs __iomem *pccs = ccs_base(local);
1582 struct pcmcia_device *link = local->finder;
1583
1584 if (!(pcmcia_dev_present(link))) {
1585 dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n");
1586 return ECARDGONE;
1587 }
1588
1589 if (test_and_set_bit(0, &local->tx_ccs_lock)) {
1590 dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n");
1591 return ECCSBUSY;
1592 }
1593
1594 for (i = 0; i < NUMBER_OF_TX_CCS; i++) {
1595 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1596 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1597 writeb(CCS_END_LIST, &(pccs + i)->link);
1598 local->tx_ccs_lock = 0;
1599 return i;
1600 }
1601 }
1602 local->tx_ccs_lock = 0;
1603 dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n");
1604 return ECCSFULL;
1605 } /* get_free_tx_ccs */
1606
1607 /*===========================================================================*/
1608 /* Get next free CCS */
1609 /* Return - index of current ccs */
get_free_ccs(ray_dev_t * local)1610 static int get_free_ccs(ray_dev_t *local)
1611 {
1612 int i;
1613 struct ccs __iomem *pccs = ccs_base(local);
1614 struct pcmcia_device *link = local->finder;
1615
1616 if (!(pcmcia_dev_present(link))) {
1617 dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n");
1618 return ECARDGONE;
1619 }
1620 if (test_and_set_bit(0, &local->ccs_lock)) {
1621 dev_dbg(&link->dev, "ray_cs ccs_lock busy\n");
1622 return ECCSBUSY;
1623 }
1624
1625 for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
1626 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1627 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1628 writeb(CCS_END_LIST, &(pccs + i)->link);
1629 local->ccs_lock = 0;
1630 return i;
1631 }
1632 }
1633 local->ccs_lock = 0;
1634 dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n");
1635 return ECCSFULL;
1636 } /* get_free_ccs */
1637
1638 /*===========================================================================*/
authenticate_timeout(u_long data)1639 static void authenticate_timeout(u_long data)
1640 {
1641 ray_dev_t *local = (ray_dev_t *) data;
1642 del_timer(&local->timer);
1643 printk(KERN_INFO "ray_cs Authentication with access point failed"
1644 " - timeout\n");
1645 join_net((u_long) local);
1646 }
1647
1648 /*===========================================================================*/
parse_addr(char * in_str,UCHAR * out)1649 static int parse_addr(char *in_str, UCHAR *out)
1650 {
1651 int len;
1652 int i, j, k;
1653 int status;
1654
1655 if (in_str == NULL)
1656 return 0;
1657 if ((len = strlen(in_str)) < 2)
1658 return 0;
1659 memset(out, 0, ADDRLEN);
1660
1661 status = 1;
1662 j = len - 1;
1663 if (j > 12)
1664 j = 12;
1665 i = 5;
1666
1667 while (j > 0) {
1668 if ((k = hex_to_bin(in_str[j--])) != -1)
1669 out[i] = k;
1670 else
1671 return 0;
1672
1673 if (j == 0)
1674 break;
1675 if ((k = hex_to_bin(in_str[j--])) != -1)
1676 out[i] += k << 4;
1677 else
1678 return 0;
1679 if (!i--)
1680 break;
1681 }
1682 return status;
1683 }
1684
1685 /*===========================================================================*/
ray_get_stats(struct net_device * dev)1686 static struct net_device_stats *ray_get_stats(struct net_device *dev)
1687 {
1688 ray_dev_t *local = netdev_priv(dev);
1689 struct pcmcia_device *link = local->finder;
1690 struct status __iomem *p = local->sram + STATUS_BASE;
1691 if (!(pcmcia_dev_present(link))) {
1692 dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n");
1693 return &local->stats;
1694 }
1695 if (readb(&p->mrx_overflow_for_host)) {
1696 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow));
1697 writeb(0, &p->mrx_overflow);
1698 writeb(0, &p->mrx_overflow_for_host);
1699 }
1700 if (readb(&p->mrx_checksum_error_for_host)) {
1701 local->stats.rx_crc_errors +=
1702 swab16(readw(&p->mrx_checksum_error));
1703 writeb(0, &p->mrx_checksum_error);
1704 writeb(0, &p->mrx_checksum_error_for_host);
1705 }
1706 if (readb(&p->rx_hec_error_for_host)) {
1707 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error));
1708 writeb(0, &p->rx_hec_error);
1709 writeb(0, &p->rx_hec_error_for_host);
1710 }
1711 return &local->stats;
1712 }
1713
1714 /*===========================================================================*/
ray_update_parm(struct net_device * dev,UCHAR objid,UCHAR * value,int len)1715 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value,
1716 int len)
1717 {
1718 ray_dev_t *local = netdev_priv(dev);
1719 struct pcmcia_device *link = local->finder;
1720 int ccsindex;
1721 int i;
1722 struct ccs __iomem *pccs;
1723
1724 if (!(pcmcia_dev_present(link))) {
1725 dev_dbg(&link->dev, "ray_update_parm - device not present\n");
1726 return;
1727 }
1728
1729 if ((ccsindex = get_free_ccs(local)) < 0) {
1730 dev_dbg(&link->dev, "ray_update_parm - No free ccs\n");
1731 return;
1732 }
1733 pccs = ccs_base(local) + ccsindex;
1734 writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
1735 writeb(objid, &pccs->var.update_param.object_id);
1736 writeb(1, &pccs->var.update_param.number_objects);
1737 writeb(0, &pccs->var.update_param.failure_cause);
1738 for (i = 0; i < len; i++) {
1739 writeb(value[i], local->sram + HOST_TO_ECF_BASE);
1740 }
1741 /* Interrupt the firmware to process the command */
1742 if (interrupt_ecf(local, ccsindex)) {
1743 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
1744 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1745 }
1746 }
1747
1748 /*===========================================================================*/
ray_update_multi_list(struct net_device * dev,int all)1749 static void ray_update_multi_list(struct net_device *dev, int all)
1750 {
1751 int ccsindex;
1752 struct ccs __iomem *pccs;
1753 ray_dev_t *local = netdev_priv(dev);
1754 struct pcmcia_device *link = local->finder;
1755 void __iomem *p = local->sram + HOST_TO_ECF_BASE;
1756
1757 if (!(pcmcia_dev_present(link))) {
1758 dev_dbg(&link->dev, "ray_update_multi_list - device not present\n");
1759 return;
1760 } else
1761 dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev);
1762 if ((ccsindex = get_free_ccs(local)) < 0) {
1763 dev_dbg(&link->dev, "ray_update_multi - No free ccs\n");
1764 return;
1765 }
1766 pccs = ccs_base(local) + ccsindex;
1767 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);
1768
1769 if (all) {
1770 writeb(0xff, &pccs->var);
1771 local->num_multi = 0xff;
1772 } else {
1773 struct netdev_hw_addr *ha;
1774 int i = 0;
1775
1776 /* Copy the kernel's list of MC addresses to card */
1777 netdev_for_each_mc_addr(ha, dev) {
1778 memcpy_toio(p, ha->addr, ETH_ALEN);
1779 dev_dbg(&link->dev, "ray_update_multi add addr %pm\n",
1780 ha->addr);
1781 p += ETH_ALEN;
1782 i++;
1783 }
1784 if (i > 256 / ADDRLEN)
1785 i = 256 / ADDRLEN;
1786 writeb((UCHAR) i, &pccs->var);
1787 dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i);
1788 /* Interrupt the firmware to process the command */
1789 local->num_multi = i;
1790 }
1791 if (interrupt_ecf(local, ccsindex)) {
1792 dev_dbg(&link->dev,
1793 "ray_cs update_multi failed - ECF not ready for intr\n");
1794 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1795 }
1796 } /* end ray_update_multi_list */
1797
1798 /*===========================================================================*/
set_multicast_list(struct net_device * dev)1799 static void set_multicast_list(struct net_device *dev)
1800 {
1801 ray_dev_t *local = netdev_priv(dev);
1802 UCHAR promisc;
1803
1804 pr_debug("ray_cs set_multicast_list(%p)\n", dev);
1805
1806 if (dev->flags & IFF_PROMISC) {
1807 if (local->sparm.b5.a_promiscuous_mode == 0) {
1808 pr_debug("ray_cs set_multicast_list promisc on\n");
1809 local->sparm.b5.a_promiscuous_mode = 1;
1810 promisc = 1;
1811 ray_update_parm(dev, OBJID_promiscuous_mode,
1812 &promisc, sizeof(promisc));
1813 }
1814 } else {
1815 if (local->sparm.b5.a_promiscuous_mode == 1) {
1816 pr_debug("ray_cs set_multicast_list promisc off\n");
1817 local->sparm.b5.a_promiscuous_mode = 0;
1818 promisc = 0;
1819 ray_update_parm(dev, OBJID_promiscuous_mode,
1820 &promisc, sizeof(promisc));
1821 }
1822 }
1823
1824 if (dev->flags & IFF_ALLMULTI)
1825 ray_update_multi_list(dev, 1);
1826 else {
1827 if (local->num_multi != netdev_mc_count(dev))
1828 ray_update_multi_list(dev, 0);
1829 }
1830 } /* end set_multicast_list */
1831
1832 /*=============================================================================
1833 * All routines below here are run at interrupt time.
1834 =============================================================================*/
ray_interrupt(int irq,void * dev_id)1835 static irqreturn_t ray_interrupt(int irq, void *dev_id)
1836 {
1837 struct net_device *dev = (struct net_device *)dev_id;
1838 struct pcmcia_device *link;
1839 ray_dev_t *local;
1840 struct ccs __iomem *pccs;
1841 struct rcs __iomem *prcs;
1842 UCHAR rcsindex;
1843 UCHAR tmp;
1844 UCHAR cmd;
1845 UCHAR status;
1846
1847 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */
1848 return IRQ_NONE;
1849
1850 pr_debug("ray_cs: interrupt for *dev=%p\n", dev);
1851
1852 local = netdev_priv(dev);
1853 link = (struct pcmcia_device *)local->finder;
1854 if (!pcmcia_dev_present(link)) {
1855 pr_debug(
1856 "ray_cs interrupt from device not present or suspended.\n");
1857 return IRQ_NONE;
1858 }
1859 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);
1860
1861 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
1862 dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex);
1863 clear_interrupt(local);
1864 return IRQ_HANDLED;
1865 }
1866 if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */
1867 pccs = ccs_base(local) + rcsindex;
1868 cmd = readb(&pccs->cmd);
1869 status = readb(&pccs->buffer_status);
1870 switch (cmd) {
1871 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */
1872 del_timer(&local->timer);
1873 if (status == CCS_COMMAND_COMPLETE) {
1874 dev_dbg(&link->dev,
1875 "ray_cs interrupt download_startup_parameters OK\n");
1876 } else {
1877 dev_dbg(&link->dev,
1878 "ray_cs interrupt download_startup_parameters fail\n");
1879 }
1880 break;
1881 case CCS_UPDATE_PARAMS:
1882 dev_dbg(&link->dev, "ray_cs interrupt update params done\n");
1883 if (status != CCS_COMMAND_COMPLETE) {
1884 tmp =
1885 readb(&pccs->var.update_param.
1886 failure_cause);
1887 dev_dbg(&link->dev,
1888 "ray_cs interrupt update params failed - reason %d\n",
1889 tmp);
1890 }
1891 break;
1892 case CCS_REPORT_PARAMS:
1893 dev_dbg(&link->dev, "ray_cs interrupt report params done\n");
1894 break;
1895 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
1896 dev_dbg(&link->dev,
1897 "ray_cs interrupt CCS Update Multicast List done\n");
1898 break;
1899 case CCS_UPDATE_POWER_SAVINGS_MODE:
1900 dev_dbg(&link->dev,
1901 "ray_cs interrupt update power save mode done\n");
1902 break;
1903 case CCS_START_NETWORK:
1904 case CCS_JOIN_NETWORK:
1905 if (status == CCS_COMMAND_COMPLETE) {
1906 if (readb
1907 (&pccs->var.start_network.net_initiated) ==
1908 1) {
1909 dev_dbg(&link->dev,
1910 "ray_cs interrupt network \"%s\" started\n",
1911 local->sparm.b4.a_current_ess_id);
1912 } else {
1913 dev_dbg(&link->dev,
1914 "ray_cs interrupt network \"%s\" joined\n",
1915 local->sparm.b4.a_current_ess_id);
1916 }
1917 memcpy_fromio(&local->bss_id,
1918 pccs->var.start_network.bssid,
1919 ADDRLEN);
1920
1921 if (local->fw_ver == 0x55)
1922 local->net_default_tx_rate = 3;
1923 else
1924 local->net_default_tx_rate =
1925 readb(&pccs->var.start_network.
1926 net_default_tx_rate);
1927 local->encryption =
1928 readb(&pccs->var.start_network.encryption);
1929 if (!sniffer && (local->net_type == INFRA)
1930 && !(local->sparm.b4.a_acting_as_ap_status)) {
1931 authenticate(local);
1932 }
1933 local->card_status = CARD_ACQ_COMPLETE;
1934 } else {
1935 local->card_status = CARD_ACQ_FAILED;
1936
1937 del_timer(&local->timer);
1938 local->timer.expires = jiffies + HZ * 5;
1939 local->timer.data = (long)local;
1940 if (status == CCS_START_NETWORK) {
1941 dev_dbg(&link->dev,
1942 "ray_cs interrupt network \"%s\" start failed\n",
1943 local->sparm.b4.a_current_ess_id);
1944 local->timer.function = start_net;
1945 } else {
1946 dev_dbg(&link->dev,
1947 "ray_cs interrupt network \"%s\" join failed\n",
1948 local->sparm.b4.a_current_ess_id);
1949 local->timer.function = join_net;
1950 }
1951 add_timer(&local->timer);
1952 }
1953 break;
1954 case CCS_START_ASSOCIATION:
1955 if (status == CCS_COMMAND_COMPLETE) {
1956 local->card_status = CARD_ASSOC_COMPLETE;
1957 dev_dbg(&link->dev, "ray_cs association successful\n");
1958 } else {
1959 dev_dbg(&link->dev, "ray_cs association failed,\n");
1960 local->card_status = CARD_ASSOC_FAILED;
1961 join_net((u_long) local);
1962 }
1963 break;
1964 case CCS_TX_REQUEST:
1965 if (status == CCS_COMMAND_COMPLETE) {
1966 dev_dbg(&link->dev,
1967 "ray_cs interrupt tx request complete\n");
1968 } else {
1969 dev_dbg(&link->dev,
1970 "ray_cs interrupt tx request failed\n");
1971 }
1972 if (!sniffer)
1973 netif_start_queue(dev);
1974 netif_wake_queue(dev);
1975 break;
1976 case CCS_TEST_MEMORY:
1977 dev_dbg(&link->dev, "ray_cs interrupt mem test done\n");
1978 break;
1979 case CCS_SHUTDOWN:
1980 dev_dbg(&link->dev,
1981 "ray_cs interrupt Unexpected CCS returned - Shutdown\n");
1982 break;
1983 case CCS_DUMP_MEMORY:
1984 dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n");
1985 break;
1986 case CCS_START_TIMER:
1987 dev_dbg(&link->dev,
1988 "ray_cs interrupt DING - raylink timer expired\n");
1989 break;
1990 default:
1991 dev_dbg(&link->dev,
1992 "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",
1993 rcsindex, cmd);
1994 }
1995 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
1996 } else { /* It's an RCS */
1997
1998 prcs = rcs_base(local) + rcsindex;
1999
2000 switch (readb(&prcs->interrupt_id)) {
2001 case PROCESS_RX_PACKET:
2002 ray_rx(dev, local, prcs);
2003 break;
2004 case REJOIN_NET_COMPLETE:
2005 dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n");
2006 local->card_status = CARD_ACQ_COMPLETE;
2007 /* do we need to clear tx buffers CCS's? */
2008 if (local->sparm.b4.a_network_type == ADHOC) {
2009 if (!sniffer)
2010 netif_start_queue(dev);
2011 } else {
2012 memcpy_fromio(&local->bss_id,
2013 prcs->var.rejoin_net_complete.
2014 bssid, ADDRLEN);
2015 dev_dbg(&link->dev, "ray_cs new BSSID = %pm\n",
2016 local->bss_id);
2017 if (!sniffer)
2018 authenticate(local);
2019 }
2020 break;
2021 case ROAMING_INITIATED:
2022 dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n");
2023 netif_stop_queue(dev);
2024 local->card_status = CARD_DOING_ACQ;
2025 break;
2026 case JAPAN_CALL_SIGN_RXD:
2027 dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n");
2028 break;
2029 default:
2030 dev_dbg(&link->dev,
2031 "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",
2032 rcsindex,
2033 (unsigned int)readb(&prcs->interrupt_id));
2034 break;
2035 }
2036 writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
2037 }
2038 clear_interrupt(local);
2039 return IRQ_HANDLED;
2040 } /* ray_interrupt */
2041
2042 /*===========================================================================*/
ray_rx(struct net_device * dev,ray_dev_t * local,struct rcs __iomem * prcs)2043 static void ray_rx(struct net_device *dev, ray_dev_t *local,
2044 struct rcs __iomem *prcs)
2045 {
2046 int rx_len;
2047 unsigned int pkt_addr;
2048 void __iomem *pmsg;
2049 pr_debug("ray_rx process rx packet\n");
2050
2051 /* Calculate address of packet within Rx buffer */
2052 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
2053 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
2054 /* Length of first packet fragment */
2055 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
2056 + readb(&prcs->var.rx_packet.rx_data_length[1]);
2057
2058 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
2059 pmsg = local->rmem + pkt_addr;
2060 switch (readb(pmsg)) {
2061 case DATA_TYPE:
2062 pr_debug("ray_rx data type\n");
2063 rx_data(dev, prcs, pkt_addr, rx_len);
2064 break;
2065 case AUTHENTIC_TYPE:
2066 pr_debug("ray_rx authentic type\n");
2067 if (sniffer)
2068 rx_data(dev, prcs, pkt_addr, rx_len);
2069 else
2070 rx_authenticate(local, prcs, pkt_addr, rx_len);
2071 break;
2072 case DEAUTHENTIC_TYPE:
2073 pr_debug("ray_rx deauth type\n");
2074 if (sniffer)
2075 rx_data(dev, prcs, pkt_addr, rx_len);
2076 else
2077 rx_deauthenticate(local, prcs, pkt_addr, rx_len);
2078 break;
2079 case NULL_MSG_TYPE:
2080 pr_debug("ray_cs rx NULL msg\n");
2081 break;
2082 case BEACON_TYPE:
2083 pr_debug("ray_rx beacon type\n");
2084 if (sniffer)
2085 rx_data(dev, prcs, pkt_addr, rx_len);
2086
2087 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr,
2088 rx_len < sizeof(struct beacon_rx) ?
2089 rx_len : sizeof(struct beacon_rx));
2090
2091 local->beacon_rxed = 1;
2092 /* Get the statistics so the card counters never overflow */
2093 ray_get_stats(dev);
2094 break;
2095 default:
2096 pr_debug("ray_cs unknown pkt type %2x\n",
2097 (unsigned int)readb(pmsg));
2098 break;
2099 }
2100
2101 } /* end ray_rx */
2102
2103 /*===========================================================================*/
rx_data(struct net_device * dev,struct rcs __iomem * prcs,unsigned int pkt_addr,int rx_len)2104 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
2105 unsigned int pkt_addr, int rx_len)
2106 {
2107 struct sk_buff *skb = NULL;
2108 struct rcs __iomem *prcslink = prcs;
2109 ray_dev_t *local = netdev_priv(dev);
2110 UCHAR *rx_ptr;
2111 int total_len;
2112 int tmp;
2113 #ifdef WIRELESS_SPY
2114 int siglev = local->last_rsl;
2115 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */
2116 #endif
2117
2118 if (!sniffer) {
2119 if (translate) {
2120 /* TBD length needs fixing for translated header */
2121 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2122 rx_len >
2123 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2124 FCS_LEN)) {
2125 pr_debug(
2126 "ray_cs invalid packet length %d received\n",
2127 rx_len);
2128 return;
2129 }
2130 } else { /* encapsulated ethernet */
2131
2132 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2133 rx_len >
2134 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2135 FCS_LEN)) {
2136 pr_debug(
2137 "ray_cs invalid packet length %d received\n",
2138 rx_len);
2139 return;
2140 }
2141 }
2142 }
2143 pr_debug("ray_cs rx_data packet\n");
2144 /* If fragmented packet, verify sizes of fragments add up */
2145 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2146 pr_debug("ray_cs rx'ed fragment\n");
2147 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
2148 + readb(&prcs->var.rx_packet.totalpacketlength[1]);
2149 total_len = tmp;
2150 prcslink = prcs;
2151 do {
2152 tmp -=
2153 (readb(&prcslink->var.rx_packet.rx_data_length[0])
2154 << 8)
2155 + readb(&prcslink->var.rx_packet.rx_data_length[1]);
2156 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index)
2157 == 0xFF || tmp < 0)
2158 break;
2159 prcslink = rcs_base(local)
2160 + readb(&prcslink->link_field);
2161 } while (1);
2162
2163 if (tmp < 0) {
2164 pr_debug(
2165 "ray_cs rx_data fragment lengths don't add up\n");
2166 local->stats.rx_dropped++;
2167 release_frag_chain(local, prcs);
2168 return;
2169 }
2170 } else { /* Single unfragmented packet */
2171 total_len = rx_len;
2172 }
2173
2174 skb = dev_alloc_skb(total_len + 5);
2175 if (skb == NULL) {
2176 pr_debug("ray_cs rx_data could not allocate skb\n");
2177 local->stats.rx_dropped++;
2178 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
2179 release_frag_chain(local, prcs);
2180 return;
2181 }
2182 skb_reserve(skb, 2); /* Align IP on 16 byte (TBD check this) */
2183
2184 pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len,
2185 rx_len);
2186
2187 /************************/
2188 /* Reserve enough room for the whole damn packet. */
2189 rx_ptr = skb_put(skb, total_len);
2190 /* Copy the whole packet to sk_buff */
2191 rx_ptr +=
2192 copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
2193 /* Get source address */
2194 #ifdef WIRELESS_SPY
2195 skb_copy_from_linear_data_offset(skb,
2196 offsetof(struct mac_header, addr_2),
2197 linksrcaddr, ETH_ALEN);
2198 #endif
2199 /* Now, deal with encapsulation/translation/sniffer */
2200 if (!sniffer) {
2201 if (!translate) {
2202 /* Encapsulated ethernet, so just lop off 802.11 MAC header */
2203 /* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
2204 skb_pull(skb, RX_MAC_HEADER_LENGTH);
2205 } else {
2206 /* Do translation */
2207 untranslate(local, skb, total_len);
2208 }
2209 } else { /* sniffer mode, so just pass whole packet */
2210 };
2211
2212 /************************/
2213 /* Now pick up the rest of the fragments if any */
2214 tmp = 17;
2215 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2216 prcslink = prcs;
2217 pr_debug("ray_cs rx_data in fragment loop\n");
2218 do {
2219 prcslink = rcs_base(local)
2220 +
2221 readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2222 rx_len =
2223 ((readb(&prcslink->var.rx_packet.rx_data_length[0])
2224 << 8)
2225 +
2226 readb(&prcslink->var.rx_packet.rx_data_length[1]))
2227 & RX_BUFF_END;
2228 pkt_addr =
2229 ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) <<
2230 8)
2231 + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
2232 & RX_BUFF_END;
2233
2234 rx_ptr +=
2235 copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);
2236
2237 } while (tmp-- &&
2238 readb(&prcslink->var.rx_packet.next_frag_rcs_index) !=
2239 0xFF);
2240 release_frag_chain(local, prcs);
2241 }
2242
2243 skb->protocol = eth_type_trans(skb, dev);
2244 netif_rx(skb);
2245 local->stats.rx_packets++;
2246 local->stats.rx_bytes += total_len;
2247
2248 /* Gather signal strength per address */
2249 #ifdef WIRELESS_SPY
2250 /* For the Access Point or the node having started the ad-hoc net
2251 * note : ad-hoc work only in some specific configurations, but we
2252 * kludge in ray_get_wireless_stats... */
2253 if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) {
2254 /* Update statistics */
2255 /*local->wstats.qual.qual = none ? */
2256 local->wstats.qual.level = siglev;
2257 /*local->wstats.qual.noise = none ? */
2258 local->wstats.qual.updated = 0x2;
2259 }
2260 /* Now, update the spy stuff */
2261 {
2262 struct iw_quality wstats;
2263 wstats.level = siglev;
2264 /* wstats.noise = none ? */
2265 /* wstats.qual = none ? */
2266 wstats.updated = 0x2;
2267 /* Update spy records */
2268 wireless_spy_update(dev, linksrcaddr, &wstats);
2269 }
2270 #endif /* WIRELESS_SPY */
2271 } /* end rx_data */
2272
2273 /*===========================================================================*/
untranslate(ray_dev_t * local,struct sk_buff * skb,int len)2274 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
2275 {
2276 snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH);
2277 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data;
2278 __be16 type = *(__be16 *) psnap->ethertype;
2279 int delta;
2280 struct ethhdr *peth;
2281 UCHAR srcaddr[ADDRLEN];
2282 UCHAR destaddr[ADDRLEN];
2283 static const UCHAR org_bridge[3] = { 0, 0, 0xf8 };
2284 static const UCHAR org_1042[3] = { 0, 0, 0 };
2285
2286 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN);
2287 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN);
2288
2289 #if 0
2290 if {
2291 print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ",
2292 DUMP_PREFIX_NONE, 16, 1,
2293 skb->data, 64, true);
2294 printk(KERN_DEBUG
2295 "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
2296 ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl,
2297 psnap->org[0], psnap->org[1], psnap->org[2]);
2298 printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data);
2299 }
2300 #endif
2301
2302 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) {
2303 /* not a snap type so leave it alone */
2304 pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n",
2305 psnap->dsap, psnap->ssap, psnap->ctrl);
2306
2307 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2308 peth = (struct ethhdr *)(skb->data + delta);
2309 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2310 } else { /* Its a SNAP */
2311 if (memcmp(psnap->org, org_bridge, 3) == 0) {
2312 /* EtherII and nuke the LLC */
2313 pr_debug("ray_cs untranslate Bridge encap\n");
2314 delta = RX_MAC_HEADER_LENGTH
2315 + sizeof(struct snaphdr_t) - ETH_HLEN;
2316 peth = (struct ethhdr *)(skb->data + delta);
2317 peth->h_proto = type;
2318 } else if (memcmp(psnap->org, org_1042, 3) == 0) {
2319 switch (ntohs(type)) {
2320 case ETH_P_IPX:
2321 case ETH_P_AARP:
2322 pr_debug("ray_cs untranslate RFC IPX/AARP\n");
2323 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2324 peth = (struct ethhdr *)(skb->data + delta);
2325 peth->h_proto =
2326 htons(len - RX_MAC_HEADER_LENGTH);
2327 break;
2328 default:
2329 pr_debug("ray_cs untranslate RFC default\n");
2330 delta = RX_MAC_HEADER_LENGTH +
2331 sizeof(struct snaphdr_t) - ETH_HLEN;
2332 peth = (struct ethhdr *)(skb->data + delta);
2333 peth->h_proto = type;
2334 break;
2335 }
2336 } else {
2337 printk("ray_cs untranslate very confused by packet\n");
2338 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2339 peth = (struct ethhdr *)(skb->data + delta);
2340 peth->h_proto = type;
2341 }
2342 }
2343 /* TBD reserve skb_reserve(skb, delta); */
2344 skb_pull(skb, delta);
2345 pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta,
2346 skb->data);
2347 memcpy(peth->h_dest, destaddr, ADDRLEN);
2348 memcpy(peth->h_source, srcaddr, ADDRLEN);
2349 #if 0
2350 {
2351 int i;
2352 printk(KERN_DEBUG "skb->data after untranslate:");
2353 for (i = 0; i < 64; i++)
2354 printk("%02x ", skb->data[i]);
2355 printk("\n");
2356 }
2357 #endif
2358 } /* end untranslate */
2359
2360 /*===========================================================================*/
2361 /* Copy data from circular receive buffer to PC memory.
2362 * dest = destination address in PC memory
2363 * pkt_addr = source address in receive buffer
2364 * len = length of packet to copy
2365 */
copy_from_rx_buff(ray_dev_t * local,UCHAR * dest,int pkt_addr,int length)2366 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr,
2367 int length)
2368 {
2369 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
2370 if (wrap_bytes <= 0) {
2371 memcpy_fromio(dest, local->rmem + pkt_addr, length);
2372 } else { /* Packet wrapped in circular buffer */
2373
2374 memcpy_fromio(dest, local->rmem + pkt_addr,
2375 length - wrap_bytes);
2376 memcpy_fromio(dest + length - wrap_bytes, local->rmem,
2377 wrap_bytes);
2378 }
2379 return length;
2380 }
2381
2382 /*===========================================================================*/
release_frag_chain(ray_dev_t * local,struct rcs __iomem * prcs)2383 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs)
2384 {
2385 struct rcs __iomem *prcslink = prcs;
2386 int tmp = 17;
2387 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);
2388
2389 while (tmp--) {
2390 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2391 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
2392 pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n",
2393 rcsindex);
2394 break;
2395 }
2396 prcslink = rcs_base(local) + rcsindex;
2397 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2398 }
2399 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2400 }
2401
2402 /*===========================================================================*/
authenticate(ray_dev_t * local)2403 static void authenticate(ray_dev_t *local)
2404 {
2405 struct pcmcia_device *link = local->finder;
2406 dev_dbg(&link->dev, "ray_cs Starting authentication.\n");
2407 if (!(pcmcia_dev_present(link))) {
2408 dev_dbg(&link->dev, "ray_cs authenticate - device not present\n");
2409 return;
2410 }
2411
2412 del_timer(&local->timer);
2413 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
2414 local->timer.function = join_net;
2415 } else {
2416 local->timer.function = authenticate_timeout;
2417 }
2418 local->timer.expires = jiffies + HZ * 2;
2419 local->timer.data = (long)local;
2420 add_timer(&local->timer);
2421 local->authentication_state = AWAITING_RESPONSE;
2422 } /* end authenticate */
2423
2424 /*===========================================================================*/
rx_authenticate(ray_dev_t * local,struct rcs __iomem * prcs,unsigned int pkt_addr,int rx_len)2425 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2426 unsigned int pkt_addr, int rx_len)
2427 {
2428 UCHAR buff[256];
2429 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2430
2431 del_timer(&local->timer);
2432
2433 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2434 /* if we are trying to get authenticated */
2435 if (local->sparm.b4.a_network_type == ADHOC) {
2436 pr_debug("ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n",
2437 msg->var[0], msg->var[1], msg->var[2], msg->var[3],
2438 msg->var[4], msg->var[5]);
2439 if (msg->var[2] == 1) {
2440 pr_debug("ray_cs Sending authentication response.\n");
2441 if (!build_auth_frame
2442 (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
2443 local->authentication_state = NEED_TO_AUTH;
2444 memcpy(local->auth_id, msg->mac.addr_2,
2445 ADDRLEN);
2446 }
2447 }
2448 } else { /* Infrastructure network */
2449
2450 if (local->authentication_state == AWAITING_RESPONSE) {
2451 /* Verify authentication sequence #2 and success */
2452 if (msg->var[2] == 2) {
2453 if ((msg->var[3] | msg->var[4]) == 0) {
2454 pr_debug("Authentication successful\n");
2455 local->card_status = CARD_AUTH_COMPLETE;
2456 associate(local);
2457 local->authentication_state =
2458 AUTHENTICATED;
2459 } else {
2460 pr_debug("Authentication refused\n");
2461 local->card_status = CARD_AUTH_REFUSED;
2462 join_net((u_long) local);
2463 local->authentication_state =
2464 UNAUTHENTICATED;
2465 }
2466 }
2467 }
2468 }
2469
2470 } /* end rx_authenticate */
2471
2472 /*===========================================================================*/
associate(ray_dev_t * local)2473 static void associate(ray_dev_t *local)
2474 {
2475 struct ccs __iomem *pccs;
2476 struct pcmcia_device *link = local->finder;
2477 struct net_device *dev = link->priv;
2478 int ccsindex;
2479 if (!(pcmcia_dev_present(link))) {
2480 dev_dbg(&link->dev, "ray_cs associate - device not present\n");
2481 return;
2482 }
2483 /* If no tx buffers available, return */
2484 if ((ccsindex = get_free_ccs(local)) < 0) {
2485 /* TBD should never be here but... what if we are? */
2486 dev_dbg(&link->dev, "ray_cs associate - No free ccs\n");
2487 return;
2488 }
2489 dev_dbg(&link->dev, "ray_cs Starting association with access point\n");
2490 pccs = ccs_base(local) + ccsindex;
2491 /* fill in the CCS */
2492 writeb(CCS_START_ASSOCIATION, &pccs->cmd);
2493 /* Interrupt the firmware to process the command */
2494 if (interrupt_ecf(local, ccsindex)) {
2495 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
2496 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2497
2498 del_timer(&local->timer);
2499 local->timer.expires = jiffies + HZ * 2;
2500 local->timer.data = (long)local;
2501 local->timer.function = join_net;
2502 add_timer(&local->timer);
2503 local->card_status = CARD_ASSOC_FAILED;
2504 return;
2505 }
2506 if (!sniffer)
2507 netif_start_queue(dev);
2508
2509 } /* end associate */
2510
2511 /*===========================================================================*/
rx_deauthenticate(ray_dev_t * local,struct rcs __iomem * prcs,unsigned int pkt_addr,int rx_len)2512 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2513 unsigned int pkt_addr, int rx_len)
2514 {
2515 /* UCHAR buff[256];
2516 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2517 */
2518 pr_debug("Deauthentication frame received\n");
2519 local->authentication_state = UNAUTHENTICATED;
2520 /* Need to reauthenticate or rejoin depending on reason code */
2521 /* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2522 */
2523 }
2524
2525 /*===========================================================================*/
clear_interrupt(ray_dev_t * local)2526 static void clear_interrupt(ray_dev_t *local)
2527 {
2528 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
2529 }
2530
2531 /*===========================================================================*/
2532 #ifdef CONFIG_PROC_FS
2533 #define MAXDATA (PAGE_SIZE - 80)
2534
2535 static const char *card_status[] = {
2536 "Card inserted - uninitialized", /* 0 */
2537 "Card not downloaded", /* 1 */
2538 "Waiting for download parameters", /* 2 */
2539 "Card doing acquisition", /* 3 */
2540 "Acquisition complete", /* 4 */
2541 "Authentication complete", /* 5 */
2542 "Association complete", /* 6 */
2543 "???", "???", "???", "???", /* 7 8 9 10 undefined */
2544 "Card init error", /* 11 */
2545 "Download parameters error", /* 12 */
2546 "???", /* 13 */
2547 "Acquisition failed", /* 14 */
2548 "Authentication refused", /* 15 */
2549 "Association failed" /* 16 */
2550 };
2551
2552 static const char *nettype[] = { "Adhoc", "Infra " };
2553 static const char *framing[] = { "Encapsulation", "Translation" }
2554
2555 ;
2556 /*===========================================================================*/
ray_cs_proc_show(struct seq_file * m,void * v)2557 static int ray_cs_proc_show(struct seq_file *m, void *v)
2558 {
2559 /* Print current values which are not available via other means
2560 * eg ifconfig
2561 */
2562 int i;
2563 struct pcmcia_device *link;
2564 struct net_device *dev;
2565 ray_dev_t *local;
2566 UCHAR *p;
2567 struct freq_hop_element *pfh;
2568 UCHAR c[33];
2569
2570 link = this_device;
2571 if (!link)
2572 return 0;
2573 dev = (struct net_device *)link->priv;
2574 if (!dev)
2575 return 0;
2576 local = netdev_priv(dev);
2577 if (!local)
2578 return 0;
2579
2580 seq_puts(m, "Raylink Wireless LAN driver status\n");
2581 seq_printf(m, "%s\n", rcsid);
2582 /* build 4 does not report version, and field is 0x55 after memtest */
2583 seq_puts(m, "Firmware version = ");
2584 if (local->fw_ver == 0x55)
2585 seq_puts(m, "4 - Use dump_cis for more details\n");
2586 else
2587 seq_printf(m, "%2d.%02d.%02d\n",
2588 local->fw_ver, local->fw_bld, local->fw_var);
2589
2590 for (i = 0; i < 32; i++)
2591 c[i] = local->sparm.b5.a_current_ess_id[i];
2592 c[32] = 0;
2593 seq_printf(m, "%s network ESSID = \"%s\"\n",
2594 nettype[local->sparm.b5.a_network_type], c);
2595
2596 p = local->bss_id;
2597 seq_printf(m, "BSSID = %pM\n", p);
2598
2599 seq_printf(m, "Country code = %d\n",
2600 local->sparm.b5.a_curr_country_code);
2601
2602 i = local->card_status;
2603 if (i < 0)
2604 i = 10;
2605 if (i > 16)
2606 i = 10;
2607 seq_printf(m, "Card status = %s\n", card_status[i]);
2608
2609 seq_printf(m, "Framing mode = %s\n", framing[translate]);
2610
2611 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl);
2612
2613 if (local->beacon_rxed) {
2614 /* Pull some fields out of last beacon received */
2615 seq_printf(m, "Beacon Interval = %d Kus\n",
2616 local->last_bcn.beacon_intvl[0]
2617 + 256 * local->last_bcn.beacon_intvl[1]);
2618
2619 p = local->last_bcn.elements;
2620 if (p[0] == C_ESSID_ELEMENT_ID)
2621 p += p[1] + 2;
2622 else {
2623 seq_printf(m,
2624 "Parse beacon failed at essid element id = %d\n",
2625 p[0]);
2626 return 0;
2627 }
2628
2629 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
2630 seq_puts(m, "Supported rate codes = ");
2631 for (i = 2; i < p[1] + 2; i++)
2632 seq_printf(m, "0x%02x ", p[i]);
2633 seq_putc(m, '\n');
2634 p += p[1] + 2;
2635 } else {
2636 seq_puts(m, "Parse beacon failed at rates element\n");
2637 return 0;
2638 }
2639
2640 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
2641 pfh = (struct freq_hop_element *)p;
2642 seq_printf(m, "Hop dwell = %d Kus\n",
2643 pfh->dwell_time[0] +
2644 256 * pfh->dwell_time[1]);
2645 seq_printf(m, "Hop set = %d\n",
2646 pfh->hop_set);
2647 seq_printf(m, "Hop pattern = %d\n",
2648 pfh->hop_pattern);
2649 seq_printf(m, "Hop index = %d\n",
2650 pfh->hop_index);
2651 p += p[1] + 2;
2652 } else {
2653 seq_puts(m,
2654 "Parse beacon failed at FH param element\n");
2655 return 0;
2656 }
2657 } else {
2658 seq_puts(m, "No beacons received\n");
2659 }
2660 return 0;
2661 }
2662
ray_cs_proc_open(struct inode * inode,struct file * file)2663 static int ray_cs_proc_open(struct inode *inode, struct file *file)
2664 {
2665 return single_open(file, ray_cs_proc_show, NULL);
2666 }
2667
2668 static const struct file_operations ray_cs_proc_fops = {
2669 .owner = THIS_MODULE,
2670 .open = ray_cs_proc_open,
2671 .read = seq_read,
2672 .llseek = seq_lseek,
2673 .release = single_release,
2674 };
2675 #endif
2676 /*===========================================================================*/
build_auth_frame(ray_dev_t * local,UCHAR * dest,int auth_type)2677 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
2678 {
2679 int addr;
2680 struct ccs __iomem *pccs;
2681 struct tx_msg __iomem *ptx;
2682 int ccsindex;
2683
2684 /* If no tx buffers available, return */
2685 if ((ccsindex = get_free_tx_ccs(local)) < 0) {
2686 pr_debug("ray_cs send authenticate - No free tx ccs\n");
2687 return -1;
2688 }
2689
2690 pccs = ccs_base(local) + ccsindex;
2691
2692 /* Address in card space */
2693 addr = TX_BUF_BASE + (ccsindex << 11);
2694 /* fill in the CCS */
2695 writeb(CCS_TX_REQUEST, &pccs->cmd);
2696 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
2697 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
2698 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
2699 writeb(TX_AUTHENTICATE_LENGTH_LSB,
2700 pccs->var.tx_request.tx_data_length + 1);
2701 writeb(0, &pccs->var.tx_request.pow_sav_mode);
2702
2703 ptx = local->sram + addr;
2704 /* fill in the mac header */
2705 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
2706 writeb(0, &ptx->mac.frame_ctl_2);
2707
2708 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
2709 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
2710 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
2711
2712 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
2713 memset_io(ptx->var, 0, 6);
2714 writeb(auth_type & 0xff, ptx->var + 2);
2715
2716 /* Interrupt the firmware to process the command */
2717 if (interrupt_ecf(local, ccsindex)) {
2718 pr_debug(
2719 "ray_cs send authentication request failed - ECF not ready for intr\n");
2720 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2721 return -1;
2722 }
2723 return 0;
2724 } /* End build_auth_frame */
2725
2726 /*===========================================================================*/
2727 #ifdef CONFIG_PROC_FS
ray_cs_essid_proc_write(struct file * file,const char __user * buffer,size_t count,loff_t * pos)2728 static ssize_t ray_cs_essid_proc_write(struct file *file,
2729 const char __user *buffer, size_t count, loff_t *pos)
2730 {
2731 static char proc_essid[33];
2732 unsigned int len = count;
2733
2734 if (len > 32)
2735 len = 32;
2736 memset(proc_essid, 0, 33);
2737 if (copy_from_user(proc_essid, buffer, len))
2738 return -EFAULT;
2739 essid = proc_essid;
2740 return count;
2741 }
2742
2743 static const struct file_operations ray_cs_essid_proc_fops = {
2744 .owner = THIS_MODULE,
2745 .write = ray_cs_essid_proc_write,
2746 .llseek = noop_llseek,
2747 };
2748
int_proc_write(struct file * file,const char __user * buffer,size_t count,loff_t * pos)2749 static ssize_t int_proc_write(struct file *file, const char __user *buffer,
2750 size_t count, loff_t *pos)
2751 {
2752 static char proc_number[10];
2753 char *p;
2754 int nr, len;
2755
2756 if (!count)
2757 return 0;
2758
2759 if (count > 9)
2760 return -EINVAL;
2761 if (copy_from_user(proc_number, buffer, count))
2762 return -EFAULT;
2763 p = proc_number;
2764 nr = 0;
2765 len = count;
2766 do {
2767 unsigned int c = *p - '0';
2768 if (c > 9)
2769 return -EINVAL;
2770 nr = nr * 10 + c;
2771 p++;
2772 } while (--len);
2773 *(int *)PDE(file->f_path.dentry->d_inode)->data = nr;
2774 return count;
2775 }
2776
2777 static const struct file_operations int_proc_fops = {
2778 .owner = THIS_MODULE,
2779 .write = int_proc_write,
2780 .llseek = noop_llseek,
2781 };
2782 #endif
2783
2784 static const struct pcmcia_device_id ray_ids[] = {
2785 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000),
2786 PCMCIA_DEVICE_NULL,
2787 };
2788
2789 MODULE_DEVICE_TABLE(pcmcia, ray_ids);
2790
2791 static struct pcmcia_driver ray_driver = {
2792 .owner = THIS_MODULE,
2793 .name = "ray_cs",
2794 .probe = ray_probe,
2795 .remove = ray_detach,
2796 .id_table = ray_ids,
2797 .suspend = ray_suspend,
2798 .resume = ray_resume,
2799 };
2800
init_ray_cs(void)2801 static int __init init_ray_cs(void)
2802 {
2803 int rc;
2804
2805 pr_debug("%s\n", rcsid);
2806 rc = pcmcia_register_driver(&ray_driver);
2807 pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n",
2808 rc);
2809
2810 #ifdef CONFIG_PROC_FS
2811 proc_mkdir("driver/ray_cs", NULL);
2812
2813 proc_create("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_fops);
2814 proc_create("driver/ray_cs/essid", S_IWUSR, NULL, &ray_cs_essid_proc_fops);
2815 proc_create_data("driver/ray_cs/net_type", S_IWUSR, NULL, &int_proc_fops, &net_type);
2816 proc_create_data("driver/ray_cs/translate", S_IWUSR, NULL, &int_proc_fops, &translate);
2817 #endif
2818 if (translate != 0)
2819 translate = 1;
2820 return 0;
2821 } /* init_ray_cs */
2822
2823 /*===========================================================================*/
2824
exit_ray_cs(void)2825 static void __exit exit_ray_cs(void)
2826 {
2827 pr_debug("ray_cs: cleanup_module\n");
2828
2829 #ifdef CONFIG_PROC_FS
2830 remove_proc_entry("driver/ray_cs/ray_cs", NULL);
2831 remove_proc_entry("driver/ray_cs/essid", NULL);
2832 remove_proc_entry("driver/ray_cs/net_type", NULL);
2833 remove_proc_entry("driver/ray_cs/translate", NULL);
2834 remove_proc_entry("driver/ray_cs", NULL);
2835 #endif
2836
2837 pcmcia_unregister_driver(&ray_driver);
2838 } /* exit_ray_cs */
2839
2840 module_init(init_ray_cs);
2841 module_exit(exit_ray_cs);
2842
2843 /*===========================================================================*/
2844